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Old 01-10-2014, 10:08 AM   #48 (permalink)
JasonG
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Join Date: May 2009
Location: Charlotte NC / York SC
Posts: 728

05 DMax - '05 Chevrolet 2500HD
90 day: 18.48 mpg (US)
Thanks: 120
Thanked 56 Times in 52 Posts
Success !

My sig won't change for a while (90 days avg, but the last two tanks were around 18MPG !
the engine/trans/air does better at 75mph than 65.... The TQ should lockup earlier so I'm thinking it's a fuel curve thing.

I wonder if I could sell these things ?
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I can't understand why my MPG's are so low..........
21,000lb, 41' Toy Haulers are rough on FE!
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